#changealert{
    position: absolute;
    width: 800px;
    height: 600px;
    left: 50%;
    top: 50%;
    margin-left: -400px;
    margin-top: -300px;
    background-color: rgba(255, 255, 255, 0.8);
    border: 1px solid #ccc;
    border-radius: 5px;
    display: none;
}
.my-changeform{
    width: 80%;
    height: 50px;
    margin-left: 80px;
    margin-bottom: 30px;
}
.my-label1{
    margin-left: 80px;
}
.my-form{
    margin-top: 60px;
}
.my-btn{
    width: 80% !important;
    margin-left: 80px;
    margin-top: 30px !important;
}
.my-changetitle{
    margin-top: 30px;
    margin-left: 350px;
}
.close{
    position: absolute;
    right: 15px;
    top: 0;
    z-index: 5;
    font-size: 75px;
}